BR9810971A - conditional access device to provide a receiver conditional access information received in the receiver - Google Patents

conditional access device to provide a receiver conditional access information received in the receiver

Info

Publication number
BR9810971A
BR9810971A BR9810971-5A BR9810971A BR9810971A BR 9810971 A BR9810971 A BR 9810971A BR 9810971 A BR9810971 A BR 9810971A BR 9810971 A BR9810971 A BR 9810971A
Authority
BR
Brazil
Prior art keywords
receiver
conditional access
instances
provide
cable television
Prior art date
Application number
BR9810971-5A
Other languages
Portuguese (pt)
Inventor
Anthony J Wasilewski
Glendon L Akins Iii
Robert O Banker
Howard G Pinder
Original Assignee
Scientific Atlanta
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US5457597P priority Critical
Application filed by Scientific Atlanta filed Critical Scientific Atlanta
Priority to US12735298A priority
Priority to PCT/US1998/016028 priority patent/WO1999007148A1/en
Publication of BR9810971A publication Critical patent/BR9810971A/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/04Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0442Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/04Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/045Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/06Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/062Network architectures or network communication protocols for network security for supporting key management in a packet data network for key distribution, e.g. centrally by trusted party
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21Server components or server architectures
    • H04N21/226Characteristics of the server or Internal components of the server
    • H04N21/2265Server identification by a unique number or address, e.g. serial number
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26606Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
    • H04N21/44Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4405Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/4508Management of client or end-user data
    • H04N21/4524Management of client or end-user data involving the geographical location of the client
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/633Control signals issued by server directed to the network components or client
    • H04N21/6332Control signals issued by server directed to the network components or client directed to client
    • H04N21/6334Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
    • H04N21/63345Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems
    • H04N7/162Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems
    • H04N7/167Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675Providing digital key or authorisation information for generation or regeneration of the scrambling sequence

Abstract

"APARELHO DE ACESSO CONDICIONAL PARA FORNECER A UM RECEPTOR ACESSO CONDICIONAL A INFORMAçõES RECEBIDAS NO RECEPTOR". "ACCESS DEVICE CONDITIONAL TO PROVIDE FOR A CONDITIONAL ACCESS RECEIVER The INFO RECEIVED AT RECEIVER". Um sistema de televisão a cabo provê acesso condicional a serviços. A cable television system provides conditional access to services. O sistema de televisão a cabo inclui um extremo de cabeça do qual "instâncias" de serviço, ou programas, são difundidos e uma pluralidade de unidades set top para receber as instâncias e seletivamente decriptografar as instâncias para exibição para assinantes do sistema. The cable television system includes a head end which "instances" service, or programs, are broadcast and a plurality of set top units for receiving the instances and selectively decrypting the instances for display to system subscribers. As instâncias de serviço são criptografadas utilizando chaves pública e/ou privada fornecidas pelos provedores de serviço ou agentes de autorização central. service instances are encrypted using public and / or private keys provided by service providers or central authorization agents. As chaves utilizadas pelos set tops para decriptografia seletiva também podem ser de natureza pública ou privada, e tais chaves podem ser reatribuí-las em tempos diferentes para fornecer um sistema de televisão a cabo no qual as preocupações com pirataria são minimizadas. The keys used by September tops for selective decryption may also be public or private, and such keys can be reassign them at different times to provide a cable television system in which piracy concerns are minimized.
BR9810971-5A 1997-08-01 1998-07-31 conditional access device to provide a receiver conditional access information received in the receiver BR9810971A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US5457597P true 1997-08-01 1997-08-01
US12735298A true 1998-07-31 1998-07-31
PCT/US1998/016028 WO1999007148A1 (en) 1997-08-01 1998-07-31 Authorization of services in a conditional access system

Publications (1)

Publication Number Publication Date
BR9810971A true BR9810971A (en) 2004-04-13

Family

ID=26733216

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9810971-5A BR9810971A (en) 1997-08-01 1998-07-31 conditional access device to provide a receiver conditional access information received in the receiver

Country Status (6)

Country Link
EP (1) EP1000508B1 (en)
JP (4) JP2003521818A (en)
AU (1) AU8823398A (en)
BR (1) BR9810971A (en)
DE (1) DE69802288T2 (en)
WO (1) WO1999007148A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1056255A3 (en) * 1999-05-27 2003-10-29 Lucent Technologies Inc. System and method for location-dependent message access
US20010013121A1 (en) * 1999-11-12 2001-08-09 Kimball Bridget D. Authorization conditioned object message download
EP1182874A1 (en) * 2000-08-24 2002-02-27 Canal+ Technologies Société Anonyme Digital content protection system
FR2823039B1 (en) * 2001-03-30 2003-08-01 Canal Plus Technologies System and method for transmitting encrypted information is key chiffree
EP1524659A1 (en) * 2003-10-13 2005-04-20 Deutsche Thomson-Brandt Gmbh Method and apparatus for decrypting an encrypted supplementary data set
EP2040411B1 (en) * 2006-07-27 2017-01-18 Intertrust Technologies Corporation Terminal device, server device, and content distribution system
CN100544427C (en) 2007-10-31 2009-09-23 北京数码视讯科技股份有限公司 Digital television conditional receiving system and uses thereof
KR101552958B1 (en) * 2009-10-30 2015-09-14 주식회사 케이티 System and method for providing video conference using conditional access system
US8621046B2 (en) 2009-12-26 2013-12-31 Intel Corporation Offline advertising services
US8429685B2 (en) * 2010-07-09 2013-04-23 Intel Corporation System and method for privacy-preserving advertisement selection
WO2013028204A1 (en) 2011-08-25 2013-02-28 Intel Corporation System and method and computer program product for human presence detection based on audio
JP6108952B2 (en) * 2013-05-18 2017-04-05 日本放送協会 Transmission system and reception apparatus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS626589A (en) * 1985-07-02 1987-01-13 Alps Electric Co Ltd Catv converter
JP2579064B2 (en) * 1990-11-29 1997-02-05 松下電器産業株式会社 Scramble control method and apparatus
US5585866A (en) * 1993-09-09 1996-12-17 Miller; Larry Electronic television program guide schedule system and method including virtual channels
US5619501A (en) * 1994-04-22 1997-04-08 Thomson Consumer Electronics, Inc. Conditional access filter as for a packet video signal inverse transport system
DE69523178T2 (en) * 1994-12-30 2002-01-31 Thomson Consumer Electronics Modem with automatic callback possibility
FR2729521B1 (en) * 1995-01-17 1997-03-07
US5680458A (en) * 1995-11-14 1997-10-21 Microsoft Corporation Root key compromise recovery
ES2123479T1 (en) * 1995-12-29 1999-01-16 Scientific Atlanta Method and apparatus for providing conditional access interactive connection oriented networks with a multiplicity of service providers.

Also Published As

Publication number Publication date
DE69802288D1 (en) 2001-12-06
DE69802288T2 (en) 2002-06-27
JP2006333531A (en) 2006-12-07
WO1999007148A1 (en) 1999-02-11
JP2005341606A (en) 2005-12-08
JP2003521818A (en) 2003-07-15
JP2009273151A (en) 2009-11-19
AU8823398A (en) 1999-02-22
EP1000508A1 (en) 2000-05-17
EP1000508B1 (en) 2001-10-31

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